Anthro Lecture 1-15

Anthro Lecture 1-15 - Anthro Lecture 1/15 A. Gregor Mendel...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1/15 A. Gregor Mendel a. To resolve Darwin’s difficulties we need to understand the nature of inheritance: it is particulate, not a blending process. b. Green peas c. Not found useful until 16 years after his death B. Some essential basic cell biology a. Organisms consist of two kinds of cells: somatic cells and gametes b. Cells contain a nucleus. i. Nucleus contains DNA, which condenses into chromosomes c. Part of a chromosome with information for one trait: gene i. Chromosomes come in pairs (23 in humans) ii. One paternal and one maternal d. When somatic cells divide (mitosis), chromosomes are doubled so each daughter cell has the same number of chromosomes (the diploid number) as the original cell e. Gametes (sex cells: eggs and sperm) have only 1 chromosome from each pair; they are haploid and are produced by a different process: meiosis. There’s one paternal and one maternal chromosome in each pair. C. Mendel’s expirements a. Focused on traits that have two forms i. Green/yellow seeds ii. Smooth/wrinkled seeds b. Cultivated true breeding lines and then studied the results
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/05/2008 for the course ANTHRO 7 taught by Professor Manson during the Winter '98 term at UCLA.

Page1 / 4

Anthro Lecture 1-15 - Anthro Lecture 1/15 A. Gregor Mendel...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online